How to choose inverter thyristor for isithando somlilo esincibilikisa induction?

1) Khetha ngokuya ngobubanzi bemvamisa yokusebenza yesithando somlilo sokuncibilika;

The frequency is 100HZ—500HZ and the selected turn-off time is 20µs-45µs KK type thyristor.

The frequency is 500HZ—1000HZ and the selected turn-off time is 18μs-25μs KK type thyristor.

The frequency is 1000HZ—2500HZ and the selected turn-off time is 12μs-18μs KK type thyristor.

KKG-type thyristor with a frequency of 2500HZ—4000HZ and a selected turn-off time of 10µs-14µs.

The frequency is 4000HZ—8000HZ, and the selected turn-off time is 6μs—9μs KA type SCR.

2) Khetha ngokusho kwamandla okukhipha isithando somlilo sokuncibilika;

According to the theoretical calculation of the parallel bridge inverter circuit, the current flowing through each thyristor is 0.455 times the total current. Considering that enough space is left, a thyristor with the same size as the rated current is usually selected.

I-thyristor yamanje ekhethiwe engu-300A/1400V enamandla aphakathi kuka-50KW no-100KW. (380V isigaba-in voltage)

I-thyristor yamanje ekhethiwe engu-500A/1400V enamandla angu-100KW-250KW. (380V isigaba-in voltage)

I-thyristor yamanje ekhethiwe engu-800A/1600V enamandla asuka ku-350KW ukuya ku-400KW. (380V isigaba-in voltage)

I-thyristor yamanje ekhethiwe engu-1500A/1600V enamandla aphakathi kuka-500KW no-750KW. (380V isigaba-in voltage)

I-thyristor yamanje ekhethiwe engu-1500A/2500V enamandla aphakathi kuka-800KW no-1000KW. (660V isigaba-in voltage)

I-thyristor yamanje ekhethiwe engu-2000A/2500V enamandla angu-1200KW-1600KW. (660V isigaba-in voltage)

I-thyristor yamanje ekhethiwe engu-2500A/3000V enamandla aphakathi kuka-1800KW no-2500KW. (1250V isigaba-in voltage)